Why puddles instead of water flow?
From your screenshot it appears that your 'inflow' object is just a plain circle with no faces. This will result in only a very small inflow of fluid since it is the faces (shell) or the volume that contribute to the flow.

The simplest solution will be to select your circle inflow object, go into Edit mode (Tab), select all (A) and press F to add a face. If you now bake your fluid simulation you should have a proper flow of fluid rather than just intermittent drips.